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Question: OC→ is the bisector of right angle AOB. m∠AOC is ...


A ) 90
B ) 45
C ) 180
D ) 60

Steps to derive



2 OC→ is the angle bisector of ∠AOB
 [Given.]

3 m∠AOC = 12(m∠AOB)
 [Definition of angle bisector.]

4 m∠AOC = 12 × 90
 [Substitute ∠AOB = 90o.]

5 m∠AOC = 45.
 [Simplify.]



Hence the right answer is Option B

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